Can anyone explain what happens why I enable he overwrite function with BB, how does it ensure the data cannot be recovered if I overwrite a. Supercedes AFSSI , 15 April OPR: HQ AFCA/SYSS (MSgt Michael E. Bishop). Certified by: HQ AFCA/SYS (Ronald G. Goessman). title to AFSSI and changes AFCERT Advisories to Time Follow procedures in AFSSI , Remanence Security (will convert to.

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Air Force System Security Instructions AFSSI-5020

This page was last edited on 25 Augustat Afsssi Schneier ‘s Algorithm [14]. Organized criminals in Ghana commonly search the drives for information to use in local scams.

WinPE has now overtaken Linux as the environment of choice since drivers can be added with little effort. Destruction at an approved metal destruction facility i.

It operates directly with sector sizes such as, andremoving the need to first reformat back to sector size.

I do think BB is a great solution for Linux, but how can I trust 50220 functin that just wfssi overwrite with no explanation of what is meant by this term, from a technical stance.

Unknown degree of Assurance Overwrites contaminating file, free space, temp space Afdsi no data loss Unbalanced solution operations drives security Very little downtime Minimizes impact to afssj of users May or may not require use of good backups. This makes any more than afzsi Pass an unnecessary and certainly a more damaging act especially as drives have passed the 1TB mark. List of data-erasing software. Data erasure offers an alternative to physical destruction and degaussing for secure removal of all the disk data.

Department of Computer Science, University of Auckland. Software-driven data erasure could also be compromised by malicious code. The above should be done in a well-ventilated area, and personnel must wear eye protection. Government contracts have been discovered on hard drives found in Agbogbloshiethe unregulated e-waste centre in Ghana.


Air Force System Security Instruction [13]. For buying the Cloth or Something see Terms and Conditions. Because of this, many data erasure programs like DBAN are provided in a bootable format, afdsi you run off of a live CD that has all of the necessary software to erase the disk.

Archived from the original PDF on From Wikipedia, the free encyclopedia. However, if the platters on a hard drive are damaged, such as by drilling a hole through the drive and the platters insidethen the data can only theoretically be recovered by bit-by-bit analysis of each platter with advanced forensic technology.

Extreme caution must be observed when handling acid solutions.

Government Communications Security Bureau. BB’s simple overwrite is not explained anywhere, why?

Data erasure

Find where written, purge affected systems and contaminated backups. This procedure should be done only by qualified and approved personnel. Thank you to all contributors.

Overwriting Hard Drive Data: Retrieved 6 January We found that none of the available software techniques for sanitizing individual files were effective.

Under BB’s preferences options why not enable users to choose standard secure erasing patterns like:. Increased storage of sensitive data, combined with rapid technological change and the shorter lifespan of IT assets, has driven the need for permanent data erasure of electronic devices as they are retired or refurbished.

AFSSI | BleachBit

There are key differentiators between data erasure and other overwriting methods, which can leave data intact and raise the risk of data breachidentity theft or failure to achieve regulatory compliance. Hard drives that are not properly erased before the computer is disposed of can be reopened, exposing sensitive information. Many data eradication programs also provide multiple overwrites so that they support recognized government and industry standards, though a single-pass overwrite is widely considered to be sufficient for modern hard disk drives.


Application of an abrasive substance emery wheel or disk sander to a magnetic disk or drum recording surface.

Software-based overwriting uses a software application to write a stream of zeros, ones or meaningless pseudorandom data onto all sectors of a hard disk drive. Credit card numbers, private financial dataaccount information and records of online transactions can be accessed by most willing individuals.

A key factor in meeting these standards is the number of times the data is overwritten. By overwriting the data on the storage device, the data is rendered unrecoverable and achieves data sanitization. Data erasure software should [ citation needed ] also comply with requirements to erase aafssi areas, provide a defects log list and list bad sectors that could not be overwritten. E-waste presents a potential security threat to individuals and exporting countries.

Retrieved 31 October Information technology assets commonly hold large volumes of confidential data. The system DAA approves of using the limited purge in this particular instance. Why no standardised erasing patterns, to ensure truer Data Sanitization: Also, compromised networks and laptop theft and loss, as well as that of other portable media, are increasingly common sources of data breaches.

Archived 26 June at the Wayback Machine. Anti-computer forensics Crypto-shredding Darik’s Boot and Nuke Data recovery Data remanence Electronic waste File deletion Gutmann method List of data-erasing software Physical information security Sanitization classified information Securitymore generally.

Also, some standards require a method to verify that all the data have been removed from the entire hard drive and to view the overwrite pattern. Purge every system on the LAN and contaminated backups. Under BB’s preferences options why not enable users to choose standard secure erasing patterns like: